Model 339
A
Section
IV
SECTION
IV
PERFORMANCE
TEST
4-1.
INTRODUCTION.
4-2.
This section contains
performance
test procedures
which can be used to verify
that the
Model 339A meets
the specifications listed in Table
1-1.
All tests can
be
performed without access to
the interior
of the
instrument. A simpler
operational verification
procedure, included in
Section
III,
may
be used to check
the operational capability
of
the 339A. The operational
pro
cedures do not,
however, check specified accuracy of
instrument.
4-3.
EQUIPMENT
REQUIRED.
4-4.
The test equipment
required for the performance
tests
is listed at the beginning of each procedure and in the
Recommended Test Equipment
Table in
Section I. If the
recommended equipment
is
not available,
any
equipment
that meets the critical specifications
given
in the table
may
be substituted.
4-5.
TEST RECORD.
4-6.
A
Performance Test Record is included
at the end of
this section
for your
convenience
in recording
performance data. This record may
be
removed
from the
manual and used as a permanent record
of the incoming
inspection
or of a routine
performance test.
The
Performance
Test
Record may be reproduced without
written permission of Hewlett-Packard.
4-7.
CALIBRATION CYCLE.
4-8.
The Model 339A
requires periodic
verification of
performance.
The
performance should be tested as part
of the incoming
inspection and
at
90 day
or
6
month
intervals,
depending upon the
environmental conditions
and
your specific
accuracy requirements.
4-9.
VOLTMETER PERFORMANCE
TESTS.
4-10.
The following procedures check
the accuracy
of the
voltmeter
section of
the
339A.
These procedures
should
be performed
and
the voltmeter
accuracy verified
before
performing
the Distortion Analyzer
Performance Tests.
4-11.
Full-Scale Accuracy
and Frequency
Response Test.
Equipment
Required:
AC
Calibrator (-hp- Model
745A)
High
Voltage Amplifier
(-hp-
Model
746A)
Figure
4-1.
Full-Scale
Accuracy
and
Frequency
Response
Test.
4-1
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